Do you have any more updates on this? I was dianosed with NCS in 1998 and in 2010 Gitelman's Syndrome. The gene testing is not available in the US for Gitelman's but I was told this is what I have as they ruled everything else out. I am currently taking Spironolactone and potassium pills for it. I am wonder how these two conditions maybe related. Thanks for any help. (I also have Orthostatic Intolerance, IBS, Fibromyalgia, migraines, Lymphedemia and Lipedema) I wish I could find one reason for them all.